:root {
  color-scheme: light;
  --accent: #176f6b;
  --bg: #f6f8fb;
  --text: #17212b;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  max-width: 1040px;
  margin: 0 auto;
  padding: 24px;
}
a { color: inherit; text-decoration-color: color-mix(in srgb, var(--accent), transparent 45%); }
.brand { font-weight: 760; text-decoration: none; }
nav { display: flex; gap: 16px; flex-wrap: wrap; }
nav a { font-size: 14px; text-decoration: none; color: color-mix(in srgb, var(--text), transparent 20%); }
main {
  max-width: 1040px;
  margin: 0 auto;
  padding: 24px;
}
.hero {
  padding: 72px 0 48px;
  border-top: 1px solid color-mix(in srgb, var(--text), transparent 88%);
}
.hero p {
  max-width: 720px;
  margin: 0 0 16px;
  color: var(--accent);
  font-weight: 680;
}
h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(42px, 7vw, 84px);
  line-height: 0.98;
  letter-spacing: 0;
}
article {
  max-width: 760px;
  padding-bottom: 72px;
  font-size: 18px;
}
footer {
  max-width: 1040px;
  margin: 0 auto;
  padding: 32px 24px;
  color: color-mix(in srgb, var(--text), transparent 42%);
  font-size: 13px;
}
@media (max-width: 640px) {
  header { align-items: flex-start; flex-direction: column; }
  .hero { padding-top: 42px; }
  article { font-size: 16px; }
}